Another spoonfed tutorial for the s-chassis community. I've been working on my KA-T walkthrough and decided to make a separate, dedicated thread for the electric fans because it seems like a common upgrade. If you can retain the mechanical fan, do so. When in fully functional condition, the mechanical fan is more simple and efficient. There's a few ways of doing this but here's the surefire way of having your fans on a switch and a relay.

All of those parts would likely cost around $80 total. You can't beat that price! This setup will wire the fans on a low speed only. I've ran my turbo KA just fine on low only with an aluminum radiator. You can chose to use the blue or green wire to to run them on low speed and both the yellow and black wires must be grounded. The relays allow the use of a direct 12V supply to auxiliaries without draining your battery. The switched 12V source turns on the relay when it receives a 12V signal. I would suggest using your cigarette lighter and either splice in or I took the connector off and installed male spade connections accordingly. Keep your fuses within a foot of the battery or 12V switched source, good rule of thumb.

I also had to cut and modify the shroud to fit in my S13. This isn't mine but looks very similar.

Wire accordingly and solder your connections. If you have to, Google how to use a solder gun and heatshrink, stop being lazy. And just so we're all clear, is the symbol for electrical ground. You can use the negative battery post,a bolt threaded to the body, or your engine block.

For a daily driver I would look into running the fans on a thermoswitch as opposed to a mechanical switch. Also, if you choose to run them on high speed, consider four relays as opposed to two.

Thanks guys, just trying to better our community with helpful threads as opposed to 'fix my car!' threads that have plaqued facebook groups and forums. Do people not understand these cars are damn near 20 years old? lol